Press



Aug. 12, 1941.

C. M. BAGSHAW PRESS Filed Aug. 25, .1940

5 Sheets-Sheet l 'QQMQQM Q Aug- 12, 1941- c. M. BAGSHAW PRESS Filed Aug. 23, 1940 3 Sheets-Sheet 2 Aug. 12, 1941.

. M. BAGSHAW PRESS Filed Aug. 25, 1940 3 Sheets-Sheet 3 AWE/V70? QQ JMM- Q serious injury occurs.

ll 5 HT s'rrss rew orrics PRESS Charles Martin Bagshaw, Leicester, England, as-

signor to United Shoe Machinery Corporation, ton, N. 3., a corporation of Borough of Fleming New Jersey Application August 23, 1940, Serial No. 353,887 inGreat Britain September 8, 1939 9 Claims.

This invention relates to safety devices and is herein illustrated as embodied in a press of the type used for cutting blanks, such as shoe part blanks, from sheet material.

One type of press employed for cutting Out};-

shoe part blanks by the use of cutting dies comprises a bed, a beam mounted for movement toward and away from the bed, and a work table movable manually into and out of operative position beneath the beam. Considerable difiiculty' has been experience in the past in connection with presses of this type, due to the fact that operators occasionally place their fingers between the beam and the table, with the result that In View of this, it is an? object of the present invention to provide improved safety mechanism, which will to a large extent eliminate accidents of the kind mentioned.

To this end and as shown, I have provided a press of the type referred to, in which there is a guard extending along one side of the beam and normally positioned adjacent to the table, together with means for raising the guard, to permit presentation of the work in operative position beneath the beam, and which is operable? through mechanism requiring the use of both hands of the operator, thus avoiding the possibility of the operator getting his fingers caught beneath the beam.

These and other features of the invention are disclosed in the following specification and in the accompanying drawings, and are pointed out in the claims.

In the drawing Fig. l is a view in front elevation of a press embodying one form of my invention;

Fig. 2 is a view in side elevation of the press; and

Fig, 3 is a plan View of a portion of the press showing manually controlled guard operating withdrawn from beneath the beam.

The frame has two upwardly extending brackets 26, in which are mounted pivots 28 carrying two arms 30, 3i to the forward end of which is secured a guard 32, the rearward and forward portions, respectively, of the arms 3H, 3| being connected together by tie rods 34 and 35. The guard 32 comprises a rectangular frame 36 (Fig. 1) within which are positioned a series of vertically extending wires 38.

The guard is normally forced, by its own weight, downwardly toward the table 58, its position heightwise of the table being determined by engagement of an abutment 49, on the frame 36, with an adjustable stop 42 on a bracket 44. The stop is adjusted to locate the guard slightly above the table, inwhich position the guard extends along one side of the beam 14, preventing ready access to the space beneath the beam, thereby eliminating likelihood of accident due to the placing of an operators fingers in a position between the beam and the work table in locating the work relatively to the beam.

Mechanism for moving the guard 32 into inoperative position will now be described. The lefthand forward spindle 16 carries a bracket 46 forming an abutment which moves up and down with the beam. This bracket is arranged to engage at certain times a pawl 48 pivotally mounted upon the left-hand arm 30, with the result that the pawl and the guard will be moved upwardly into inoperative position when the beam is raised.

The guard is arranged to be locked in inoperative position by a latch 50, pivotally mounted upon the arm 39, and which, when the guard is raised, swings by gravity into engagement with a catch plate 52, Fig. 2, on the bracket 26, thus holding the guard in raised position after the abutment id is withdrawn. The latch 50 is released at the proper time bypressure exerted by a pin ti on the pawl 48 as the latter is withdrawn.

The pawl 48 is normally held in inoperative position, that is, withdrawn from a position of alinement with the abutment 43, by a spring 54,

with the result that the guard 32 remains in to be operable only when both hands of the operator are employed at a safe distance from the beam to actuate the pawl. The means referred inoperative position upon the next upward movement of the beam. The bell crank 56 is arranged to be rotated in a counterclockwise direction by a Bowden cable 60 connected to one end of the bell crank 56, passing downwardly through a tube 62, and secured to a second bell crank lever 64 mounted on a bracket 65 at the forward portion of the frame of the machine. Movement of the bell crank 64 in a clockwise direction results in actuation of the pawl 48 through the connections just mentioned to effect a raising of the guard 32.

The bell crank 64 is arranged to be actuated by a bar 66 extending along the forward edge of the table l8 and pivotally connected at its ends 61, 1! to slides 68 and 1e mounted upon pins 12 in hand grips 14 secured to the marginal portions of opposite sides of the table If]. The construction is such that, if both hands of the operator engage the hand grips l4 and his fingers are used to move both of the slides 63, i outwardly, the central portion of the bar 66 will engage the bell crank 54 to effect its rotation. However, if only one of the slides is operated, the movement of the slide will result merely in tilting the bar about the pivot of the other slide without moving the bell crank 65 sufficiently to effect operation of the pawl 48. Thus, to release the guard in order that the work table can be located beneath the beam, both of the operator's hands must be placed where they are sufficiently removed from the presser member that there will be no likelihood of injury to the operator. When the bell crank lever 64 is actuated in the manner just indicated, the pawl 48 is brought into alinement with the bracket 46 and upon the next upward movement of the beam the guard 32 will be raised and then locked into inoperative position by engagement of the latch 50 with the catch plate 52, after which the operator can move the work table l8 with work positioned thereon into position beneath the beam. After an operation of the beam, or if the operator should release one or both of the slides 68, ll] the spring 54 will withdraw the pawl 48 and the pin thereon will engage the latch 50, thus removing it from the catch plate 52, thereby permitting the guard 32 to drop by gravity back in its position adjacent to the work table.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. A press comprising a bed, a table movable manually along the bed, a beam mounted for reciprocation toward and away from the bed, a guard extending along one side of the beam and pivotally mounted upon the frame of the machine, an abutment movable with the beam, a member associated with the guard and arranged to be engaged by the abutment in effecting movement of the guard away from the table, a spring normally operative to hold the member out of engagement with the abutment, and manually operable means for moving the member into operative position relatively to the abutment.

otally mounted upon the frame of the machine for movement into and out of position adjacent to the table, an abutment movable with the beam, a pawl associated with the guard and arranged in its operative position to be engaged by the abutment thereby to move the guard away from the table, hand grips upon the table for moving the same into or out of position beneath the beam, a spring normally operative to hold the pawl in inoperative position, a lever for moving the pawl into operative position, and means associated with each of the hand grips, together cooperable to effect actuation of the lever.

3. A press comprising a frame, a bed carried by the frame, a beam mounted for movement toward and away from the frame, a table slidably mounted upon the bed, a bracket pivotally carried by the frame, a guard mounted upon the bracket and extending heightwise of the table and along one side of the beam, an abutment movable with the beam, a pawl carried by the bracket and pivotally mounted for movement into or out of alinement with the abutment, hand grips located upon the table, a bell crank lever for moving the pawl into alinement with the abutment, and members associated with the hand grips cooperable with each other to effect movement of the bell crank lever.

4. A press comprising a frame, a beam mounted for reciprocation heightwise of the frame, a work support movable into and out of operative position beneath the beam, a guard movably mounted on the frame and normally extending along one side of the beam adjacent to the work support, a bracket movable with the beam, a member associated with the guard and movable into engagement with the bracket in effecting movement of the guard away from the work support, a plurality of hand grips carried. by the work support, and means associated with each of the hand grips together cooperable to actuate said member.

5. A press comprising a frame, a bed carried by the frame, a beam mounted for movement toward and away from the bed, a work support mounted upon the bed for movement into and out of position beneath the beam, a guard pivotally mounted upon the frame and normally extending adjacent to the work support along one side of the beam, means for moving the guard away from the work support comprising a bracket movable with the beam and a pawl associated with the guard pivotally mounted for movement into the path of movement of the bracket, and a plurality of manually operable means carried by the work support cooperable to effect movement of the pawl into the path of movement of the bracket.

6. A press comprising a frame, a bed carried by the frame, a work support mounted for movement along the bed, a beam mounted for movement toward and away from the bed, a guard pivotally mounted upon the frame and normally extending along one side of the beam adjacent to the bed, a bracket movable with the beam, a pawl associated with the guard for engaging the bracket in effecting movement of the guard into inoperative position, means for actuating the pawl, a plurality of hand grip positioned upon the work support, and means associated with each of the hand grips cooperable to effect operation of the pawl actuating means.

7. A press comprising a frame, a bed carried by the fram a presser member movable toward and away from the bed, a work support mounted upon the bed for movement into and out of operative position beneath the presser member, a guard normally extending along one side of the presser member and adjacent to the work support, a lever pivotally mounted upon the frame and secured to the guard, a bracket movable heightwise of the frame with the presser member, a pawl carried by the lever and movable into alinement with the bracket in effecting movement of the guard away from the work support, a plurality of hand grips carried by the work support, means associated with each of the hand grips cooperable to effect operation of the pawl, an abutment upon the frame, and a latch carried by the lever and constructed and arranged to engage the abutment thereby to lock the guard-in inoperative position.

8. A press comprising a frame, a beam mounted for reciprocation heightwise of the frame, a work support movable into and out of operative position beneath the beam, a guard mounted for movement heightwise of the frame and normally extending along one side of the beam adjacent to the Work support, a bracket movable with the beam, a member associated with the guard and movable into engagement with the bracket in effecting movement of the guard away from the work support, a plurality of hand grips carried by the work support, means associated with each of the hand grips together cooperable to actuate said member, an abutment upon the frame, a latch associated with the guard and movable into position to engage the abutment thereby to lock the guard in raised position, and means normally operative to hold the latch in inoperative position.

9. A press comprising a frame, a bed carried by the frame, a table movable along the bed, a beam mounted in the frame for reciprocation heightwise of the bed, a guard movably mounted upon the frame and extending along one side of the beam adjacent to the bed, a bracket movable with the beam, a member associated with the guard and arranged for movement into the path of the bracket to eifect movement of the guard away from the bed, a lever for operating said member, hand grips positioned upon the work support, manually operable slides associated with the hand grips, a bar having its end portions pivotally connected to the slides, a second lever in engagement with the bar between its end portions, and a connection between the two levers operable to actuate the first-mentioned lever when both slides are actuated simultaneously.

CHARLES MARTIN BAGSHAW. 

